// Copyright 2014 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

#ifndef MEDIA_BASE_CDM_FACTORY_H_
#define MEDIA_BASE_CDM_FACTORY_H_

#include <string>

#include "base/macros.h"
#include "media/base/content_decryption_module.h"
#include "media/base/media_export.h"

class GURL;

namespace media {

// Callback used when CDM is created. |error_message| only used if
// ContentDecryptionModule is null (i.e. CDM can't be created).
using CdmCreatedCB = base::Callback<void(const scoped_refptr<ContentDecryptionModule>&,
    const std::string& error_message)>;

struct CdmConfig;

class MEDIA_EXPORT CdmFactory {
public:
    CdmFactory();
    virtual ~CdmFactory();

    // Creates a CDM for |key_system| and returns it through |cdm_created_cb|
    // asynchronously.
    virtual void Create(
        const std::string& key_system,
        const GURL& security_origin,
        const CdmConfig& cdm_config,
        const SessionMessageCB& session_message_cb,
        const SessionClosedCB& session_closed_cb,
        const SessionKeysChangeCB& session_keys_change_cb,
        const SessionExpirationUpdateCB& session_expiration_update_cb,
        const CdmCreatedCB& cdm_created_cb)
        = 0;

private:
    DISALLOW_COPY_AND_ASSIGN(CdmFactory);
};

} // namespace media

#endif // MEDIA_BASE_CDM_FACTORY_H_
